Intel debutting Core i7 for laptops, with the 1.73GHz i7-820QM flanked on both sides by the 1.6GHz i7-720QM and the top of the range 2GHz i7-920XM. Unlike their Core 2 Quad predecessors, all four cores boast Hyper-Threading; a move that allows the processors to handle as many as eight separate threads at once with Turbo Boost. Basically, if two or more cores are sitting unused, and the processor isn’t running too hot or drawing too much current, Turbo mode kicks in and ups the speed of the remaining cores. For the i7-820QM, this can take the stock speed of 1.73GHz up to a maximum of 3.06GHz, while the i7-720QM and i7-920XM push up to 2.8GHz and 3.2GHz respectively. The 2D benchmarks show comparable performance to Core 2 Extreme chips running at 2.53GHz. Power consumption and processor temperature is dramatically lower, which should lead to significant improvements in laptop battery life.
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